Question 1: In new household refrigeration which of the following refrigerants is most commonly used as a replacement for R12 refrigerant?
- R-123
- R-24
- R-234
- R-134a
EPA 608
NEC 2023
EPA 608 Type 1 Exam Practice Test 2
Free EPA 608 Type 1 exam Practice Test - 2
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epa 608 practice tests
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Frequently Asked Questions
Yes — completely free with no account needed.
The EPA 608 certification is required by law for any technician who purchases or handles refrigerants. It covers safe handling, leak detection, recovery, and environmental regulations.
Type I covers small appliances (≤5 lbs refrigerant), Type II covers high-pressure systems, Type III covers low-pressure systems, and Universal covers all three. Most HVAC technicians pursue Universal certification.
You must score at least 70% on each section of the exam. The Universal exam has four parts: core, Type I, Type II, and Type III.
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TimeEPA 608 Type 1 Exam Practice Test 2 — Question List
Question 2: R12 and R22 refrigerants can decompose to ............... form at higher temperatures.
- Hydrogen gas
- Helium gas
- Phosgene gas
- Nitrogen gas
Question 3: The recovery equipment manufactured after ................ Must be certified by EPA laboratory to use for service or repair of small appliances.
- July 12,1993
- November 15,1993
- June 15,1992
- May 12, 1993
Question 4: For type 1 refrigeration appliance what is the the maximum allowable charge of refrigerant?
- 4 pounds
- 5 pounds
- 7 pounds
- 10 pounds
Question 5: Which of the following refrigerants can be mixed?
- R-12 and R-134a
- R-12 and R-500
- R-22 and R-410A
- Refrigerants can never be mixed
Question 6: The sale of refrigerant ...........
- Banned
- Limited to equipment owners
- Allowed only if there is any proof of need
- Restricted to EPA certified technicians.
Question 7: After completion of refrigerant repair, the solder-less piercing valves should be removed from refrigeration system because ............
- There are two expensive
- They tend to leak over time
- They became loose and vibrate
- Both en pensive and loose on system.
Question 8: When ever the pressurized nitrogen is used to blow debris out of the system ..............
- only nitrogen vapor should be used
- only liquid nitrogen should be used
- Either liquid or vapor nitrogen can be used.
- nitrogen vapor mixed with R-134 should be used
Question 9: The refrigerant recovery procedure should always be started after ......................
- determining the type of refrigerant to be recovered
- allowing system to be stabilized
- moving the system to outdoor position
- disconnecting the system from power source
Question 10: Under EPA section 608 which of the following refrigerants must be recovered currently from refrigeration equipment?
- R-12
- sulfur dioxible
- methyl cloride
- carbon monoxide
Question 11: Which of the following is perfect option in the event of large release of R-12 or R-22 in a contained are?
- wearing safety googles and hand gloves
- wearing self contained breathing operators
- wearing dust masks to protect against harmful vapors
- flushing nitrogen in the leaked area
Question 12: The following maintenance practice should be performed on recovery equipment as per EPA guidelines?
- checking recovery device for refrigerant leaks
- checking vacuum pump for any refrigerant leaks
- checking the ampere current drawn by the recovery device
- checking the correct functioning of recovery device
Question 13: Portable refillable refrigerant containers must met the following standard to be used to ship the recovered refrigerants.
- Depart of Transportation
- ARI 740
- Community Right-to-know act
- Environmental agency
Question 14: In a refrigerant recovery or repair from a refrigeration system if a pungent odor is detected .......................
- It is the smell of the leaking oil in the system
- the refrigerant should not be recovered
- it indicates the leakage of the refrigerant
- a compressor burnout has likely occured
Question 15: Which of the following is not a Type I refrigerant appliance?
- an MVAC like system that holds three pounds of R-12
- A water cooler that holds 13 ounces of R-12
- A food freezer that holds 44 ounces of R-22
- A dehumidifier with seven ounces of R-500
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